Are you a morning lark or night owl? Take the quiz

Do your circadian rhythms indicate that you perform better in the evening than in the morning? Or is the reverse true?

2. If you were entirely free to plan your evening and had no commitments the next day, at what time would you choose to go to bed?

REUTERS/Alexander Demianchuk
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8:00 p.m. - 9:00 p.m

9:00 p.m. - 10:15 p.m

10:15 p.m. - 12:30 a.m

12:30 a.m. - 1:45 a.m

1:45 a.m. - 3:00 a.m